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What does an atomic number show?
The atomic number is also known as protons. It shows the number of protons found in the nucleus of an atom and identical to the charge number of the nucleus.
How do you know protons are found in the nucleus?
The atomic number tells you how many protons are in the atomic nucleus. The atomic mass is the amount of protons plus the amount of neutrons in the atomic nucleus. So if you take the atomic number and subtract it from the atomic mass, it will give you the number of neutrons in the atomic nucleus.
How can you write an atomic number?
An atomic number is typically written as a subscript before the chemical symbol of an element. For example, the atomic number of oxygen is written as 8O. It represents the number of protons in the nucleus of an atom.
What does a superscript show when written with a chemical symbol?
A superscript in a chemical symbol indicates the charge of an ion or the mass number of an isotope. For example, a superscript of +2 next to a symbol (like ( \text{Mg}^{2+} )) shows that the ion has a positive charge of 2, while a mass number (like ( \text{C}^{12} )) indicates the total number of protons and neutrons in the nucleus of the atom. This notation is essential for understanding the chemical properties and behavior of elements and compounds.
Which of these illustrations shows isotopes of the element boron?
Isotopes of an element have the same number of protons but different numbers of neutrons. So, for boron, look for illustrations that show different numbers of neutrons in the nucleus while maintaining the same number of protons.
The periodic table is called periodic because the of the elements repeat periodically?
The periodic table is layed out to show "Periodic" chemical properties such as the number of protons in the nucleus of the elemnt, and the number of valence electons it has.
What information about an atom properties can you read from the periodic table?
Different periodic tables show different information about an atom's properties. On the normal periodic table you can read the atomic number, which is the value of the number of protons in the nucleus.
What indicates the number of protons?
The number of protons in an atom is indicated by the atomic number of the element. It is the whole number located above the element's symbol in the periodic table. The atomic number also determines the element's identity.
The periodic table arranges elements by increasing .?
mass
Does a bohr Rutherford model show protons in orbit?
Yes, the Bohr-Rutherford model depicts electrons orbiting the nucleus, which contains protons and neutrons. The model simplifies the structure of an atom by showing electrons moving in fixed orbits around the nucleus, but it does not explicitly show the protons in orbit.
What isotope does this show 7 protons 8 neutrons?
An isotope of Nitrogen shows 7 protons & 8 neutrons.
Do you need atomic number to find atomic mass?
No, you do not need the atomic number to find the atomic mass of an element. The atomic mass is the weighted average of the masses of the isotopes of an element, whereas the atomic number is the number of protons in the nucleus.
